A man suffering from Parkinson's disease was housebound, barely able to function. Then, a surgical treatment performed by Dr. Ali Rezai, which implanted electrodes in his brain, transformed his life, Morley Safer reported in 2002. This Sunday, 60 Minutes looks at Dr. Rezai's new approaches to treating Alzheimer's and addiction.

"60 Minutes" is the most successful television broadcast in history. Offering hard-hitting investigative reports, interviews, feature segments and profiles of people in the news, the broadcast began in 1968 and is still a hit, over 50 seasons later, regularly making Nielsen's Top 10.

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